A very unique idea. This can lead to so many interesting puzzles and levels, especially if the player starts out as different pieces each time. My only complaint with the level designs is that there's a lot of seemingly unnecessary walking with the pawn at the start of some stages. I get why, but if there were fewer long hallways to pass as a pawn it'd be more fun IMO. Either way, I'd love to see a full game out of this mechanic!